TY - JOUR
T1 - H-Glass Supported Hybrid Gold Nano-Islands for Visible-Light-Driven Hydrogen Evolution
AU - Mandal, Indrajeet
AU - Gangareddy, Jagannath
AU - Sethurajaperumal, Abimannan
AU - Murugasenapathi, N. K.
AU - Majji, Manikanta
AU - Bera, Susmita
AU - Rudra, Pratyasha
AU - Ravichandran, Vanmathi
AU - Bysakh, Sandip
AU - Jacob, Noah
AU - Rao, K. D.M.
AU - Singh, Rajiv K.
AU - Krishnan, N. M.Anoop
AU - Chirumamilla, Manohar
AU - Palanisamy, Tamilarasan
AU - Motapothula, M.
AU - Varrla, Eswaraiah
AU - Ghosh, Srabanti
AU - Allu, Amarnath R.
N1 - Publisher Copyright:
© 2024 The Authors. Small published by Wiley-VCH GmbH.
PY - 2024/7/4
Y1 - 2024/7/4
N2 - Flat panel reactors, coated with photocatalytic materials, offer a sustainable approach for the commercial production of hydrogen (H2) with zero carbon footprint. Despite this, achieving high solar-to-hydrogen (STH) conversion efficiency with these reactors is still a significant challenge due to the low utilization efficiency of solar light and rapid charge recombination. Herein, hybrid gold nano-islands (HGNIs) are developed on transparent glass support to improve the STH efficiency. Plasmonic HGNIs are grown on an in-house developed active glass sheet composed of sodium aluminum phosphosilicate oxide glass (H-glass) using the thermal dewetting method at 550 °C under an ambient atmosphere. HGNIs with various oxidation states (Au0, Au+, and Au−) and multiple interfaces are obtained due to the diffusion of the elements from the glass structure, which also facilitates the lifetime of the hot electron to be ≈2.94 ps. H-glass-supported HGNIs demonstrate significant STH conversion efficiency of 0.6%, without any sacrificial agents, via water dissociation. This study unveils the specific role of H-glass-supported HGNIs in facilitating light-driven chemical conversions, offering new avenues for the development of high-performance photocatalysts in various chemical conversion reactions for large-scale commercial applications.
AB - Flat panel reactors, coated with photocatalytic materials, offer a sustainable approach for the commercial production of hydrogen (H2) with zero carbon footprint. Despite this, achieving high solar-to-hydrogen (STH) conversion efficiency with these reactors is still a significant challenge due to the low utilization efficiency of solar light and rapid charge recombination. Herein, hybrid gold nano-islands (HGNIs) are developed on transparent glass support to improve the STH efficiency. Plasmonic HGNIs are grown on an in-house developed active glass sheet composed of sodium aluminum phosphosilicate oxide glass (H-glass) using the thermal dewetting method at 550 °C under an ambient atmosphere. HGNIs with various oxidation states (Au0, Au+, and Au−) and multiple interfaces are obtained due to the diffusion of the elements from the glass structure, which also facilitates the lifetime of the hot electron to be ≈2.94 ps. H-glass-supported HGNIs demonstrate significant STH conversion efficiency of 0.6%, without any sacrificial agents, via water dissociation. This study unveils the specific role of H-glass-supported HGNIs in facilitating light-driven chemical conversions, offering new avenues for the development of high-performance photocatalysts in various chemical conversion reactions for large-scale commercial applications.
KW - glass
KW - gold nanoisland
KW - multiple interfaces
KW - oxidation state
KW - photocatalysis
UR - http://www.scopus.com/inward/record.url?scp=85189157690&partnerID=8YFLogxK
U2 - 10.1002/smll.202401131
DO - 10.1002/smll.202401131
M3 - Journal article
AN - SCOPUS:85189157690
SN - 1613-6810
VL - 20
JO - Small
JF - Small
IS - 27
M1 - 2401131
ER -